MESON Chess Problem Database
Problem Display
PID: 203747 (5N2/3R4/2Pp4/1P1kprPp/1P5P/2KPR2Q/P7/8 w - - 0 1)
von Wulf, B
Baltische Schachblatter, 1898
#2
12 + 5
| 15148 | Sadier Collection | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rf1
- 2.Qe6#
- 1...Rf2
- 2.Qe6#
- 1...Rf3
- 2.Qe6#
- 1...Rf4
- 2.Qe6#
- 1...Rxg5
- 2.Qe6#
- 1...Rf7
- 2.Qe6#
- 1...e4
- 2.Qxf5#
- 1...Rf1
- Tries
- 1.Se6?
- threat
- 2.Sc7#
- 1...e4
- 2.Qxf5#
- 1...Kxe6!
- threat
- 1.Re7?
- 1...Rxg5
- 2.Qe6#
- 1...Rxf8
- 2.Qe6#
- 1...Rf1
- 2.Qe6#
- 1...Rf2
- 2.Qe6#
- 1...Rf3
- 2.Qe6#
- 1...Rf4
- 2.Qe6#
- 1...Rf7
- 2.Qe6#
- 1...e4
- 2.Qxf5#
- 2.dxe4#
- 1...Rf6!
- 1...Rxg5
- 1.Rf7?
- 1...Rxg5
- 2.Qe6#
- 1...Rxf7
- 2.Qe6#
- 1...e4
- 2.Rxf5#
- 2.Qxf5#
- 1...Rf1
- 2.Qe6#
- 1...Rf2
- 2.Qe6#
- 1...Rf3
- 2.Qe6#
- 1...Rf4
- 2.Qe6#
- 1...Rf6!
- 1...Rxg5
- 1.Qg2+?
- 1...e4
- 2.Qxe4#
- 1...Rf3!
- 1...e4
- 1.Qg4?
- threat
- 2.Qc4#
- 2.Qe4#
- 1...Rxf8
- 2.Qc4#
- 1...e4
- 2.Qxf5#
- 2.Qxe4#
- 1...Rf4
- 2.Qe6#
- 1...hxg4!
- threat
- 1.Qh1+?
- 1...e4
- 2.Qxe4#
- 1...Rf3!
- 1...e4
- 1.Qf3+?
- 1...e4
- 2.Qxe4#
- 2.Qxf5#
- 1...Rxf3!
- 1...e4
- 1.d4?
- 1...Rxg5
- 2.Qe6#
- 1...Rxf8
- 2.Rxe5#
- 1...Rf6
- 2.Rxe5#
- 1...Rf1
- 2.Rxe5#
- 2.Qe6#
- 1...Rf2
- 2.Rxe5#
- 2.Qe6#
- 1...Rf3
- 2.Qe6#
- 1...Rf4
- 2.Rxe5#
- 2.Qe6#
- 1...Rf7
- 2.Rxe5#
- 2.Qe6#
- 1...e4
- 2.Qxf5#
- 1...exd4+!
- 1...Rxg5
- 1.Se6?
- Keys
- 1.Sg6!
- 1...Ke6
- 2.Sf4#
- 1...Rxg5
- 2.Se7#
- 1...Rf1
- 2.Se7#
- 2.Rxe5#
- 1...Rf2
- 2.Se7#
- 2.Rxe5#
- 1...Rf3
- 2.Se7#
- 2.Rxe5#
- 1...Rf4
- 2.Se7#
- 2.Rxe5#
- 1...Rf6
- 2.Se7#
- 2.Rxe5#
- 1...Rf7
- 2.Rxe5#
- 1...Rf8
- 2.Se7#
- 2.Rxe5#
- 1...e4
- 2.Qxf5#
- 1...Ke6
- 1.Sg6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 4
- Sets
- R(c);OGATE::QAB1(E)
- R(c);OGATE,XP(I)::QAB1(E)
- P(b);OGATEB::QAR2(E),XR(c)
- Tries
- Try
- S(L);
- Threat
- S(L)
- Vars
- P(b);OGATEB::QAR2(E),XR(c)
- Refutation
- K(a);N_SPINP(e),P_SPINP(b),P_SPINR(c),S_FLIGHT,XS(L)
- Try
- R(K);N_PINP(e)
- Vars
- R(c);OGATE,XP(I)::QAB1(E)
- R(c);OGATE,XS(L)::QAB1(E)
- R(c);OGATE::QAB1(E)
- Refutation
- R(c);
- Try
- R(K);N_PINP(e)
- Vars
- R(c);OGATE,XP(I)::QAB1(E)
- R(c);OGATE,XR(K)::QAB1(E)
- R(c);OGATE::QAB1(E)
- Refutation
- R(c);
- Try
- Q(E);CHECK
- Vars
- P(b);N_SPINP(e),P_SPINP(b)::QAB1(E),XP(b)
- Refutation
- R(c);P_SPINR(c)
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- R(c);XS(L)::QAB1(E)
- R(c);OGATE::QAB1(E)
- Refutation
- P(d);XQ(E)
- Try
- Q(E);CHECK
- Vars
- P(b);N_SPINP(e),P_SPINP(b)::QAB1(E),XP(b)
- Refutation
- R(c);P_SPINR(c)
- Try
- Q(E);CHECK
- Refutation
- R(c);XQ(E)
- Try
- P(C);
- Vars
- R(c);OGATE,XP(I)::QAB1(E)
- R(c);N_GUARD,XS(L)::R1(D),XP(b)
- R(c);N_GUARD::R1(D),XP(b)
- R(c);OGATE,P_PINR(D)::QAB1(E)
- P(b);OGATEB::QAR2(E),XR(c)
- Refutation
- P(b);CHECK,XP(C)
- Try
- Actual
- S(L);
- Vars
- K(a);N_SPINP(e),P_SPINP(b),P_SPINR(c),S_FLIGHT::S(L)
- R(c);XP(I)::S(L)
- R(c);N_GUARD::R1(D),XP(b)
- P(b);OGATEB::QAR2(E),XR(c)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).